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The AAPG/Datapages Combined Publications Database
Journal of Sedimentary Research (SEPM)
Abstract
Local Areal Variation of Heavy Minerals in Beach Sand
W. C. Rasmussen
ABSTRACT
Twenty-four samples of beach sand were collected on a grid pattern along the southern shore of Lake Michigan, and were analyzed for their heavy mineral content. The per cent of heavy minerals by weight was plotted on a map for each sample site and contours were drawn through points of equal weight per cent. The contours parallel the shore and the weights decrease waterward, suggesting that the trend of old shorelines and possibly even the strand line itself may he determined by heavy mineral weight studies of ancient lake and marine marginal sands.
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